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invisible thread
The secret is the invisible thread that s connected to the ear and hand of a person
The string trick.
A kite string is a string which connects a kite to the person flying it. The string not only prevents the kite from flying away but actually keeps it flying by assuring that it does not turn from the wind.
There is A Invisible String Attached to it.
u use the string
A card trick
maybe a electronic string devise
Just tie a not then pull it
it depoends on the machine
make the card bounce up and down
three card MONTE